Home / 31,700.65-43,743.93-18,951.29

Finding the Fourth Proportional to 31,700.65, 43,743.93 and 18,951.29

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Solution

The fourth proportional to 31,700.65, 43,743.93 and 18,951.29 is: 26,151.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,700.65 : 43,743.93 = 18,951.29 : x
  2. Step 2: Convert to fraction form
    31,700.65/43,743.93 = 18,951.29/x
  3. Step 3: Cross multiply
    31,700.65x = 43,743.93 × 18,951.29
  4. Step 4: Simplify right side
    31,700.65x = 829,004,105.49
  5. Step 5: Solve for x
    x = 829,004,105.49/31,700.65
  6. Step 6: Final answer
    x = 26,151.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.